DE10701C - Process for separating sodium and magnesium chloride from potassium-magnesium sulfate in kainite - Google Patents

Process for separating sodium and magnesium chloride from potassium-magnesium sulfate in kainite

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Publication number
DE10701C
DE10701C DENDAT10701D DE10701DA DE10701C DE 10701 C DE10701 C DE 10701C DE NDAT10701 D DENDAT10701 D DE NDAT10701D DE 10701D A DE10701D A DE 10701DA DE 10701 C DE10701 C DE 10701C
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DE
Germany
Prior art keywords
kainite
potassium
magnesium sulfate
magnesium
magnesium chloride
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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DENDAT10701D
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German (de)
Original Assignee
Dr. G. BORSCHE & F. BRÜNJES in Leopoldshall b. Stafsfurt
Publication of DE10701C publication Critical patent/DE10701C/en
Active legal-status Critical Current

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    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01DCOMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
    • C01D5/00Sulfates or sulfites of sodium, potassium or alkali metals in general
    • C01D5/12Preparation of double sulfates of magnesium with sodium or potassium

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)

Description

1879.1879.

G. BORSCHE & F, BRÜNJES in LEOPOLDSHALL bei STASSFURT.G. BORSCHE & F, BRÜNJES in LEOPOLDSHALL near STASSFURT.

Verfahren zur Trennung von Natrium- und Magnesiumchlorid von Kalium-MagnesiumsulfatProcess for the separation of sodium and magnesium chloride from potassium-magnesium sulfate

im Kai η it.in the quay η it.

Patentirt im Deutschen Reiche vom 20. December 1879 ab.Patented in the German Empire on December 20, 1879.

Das Verfahren zur Trennung von Natrium- und Magnesiumchlorid vom Kalium-Magnesiumsulfat im Kainit besteht:The process of separating sodium and magnesium chloride from potassium-magnesium sulfate in kainite there is:

1. in der Verwendung einer bei gewöhnlicher Temperatur gesättigten Kainitlösung oder einer Salzlösung, die derselben in chemischer Beziehung analog ist, zum Lösen von Kainit bei1. in the use of a kainite solution saturated at ordinary temperature or a saline solution which is chemically analogous to it, contributes to the dissolution of kainite

2. einer Temperatur, die unter dem Siedepunkt der betreffenden Lauge liegt.2. a temperature below the boiling point of the liquor in question.

Wir erreichen dieses, indem wir Kainit mit Wasser von gewöhnlicher Temperatur behandeln und die resultirende Lauge, welche ein Vol. Gewicht von 1,28 = 32° B. zeigt, zum Lösen einer zweiten Menge Kainit bei einer Temperatur verwenden, die unter dem Siedepunkt (etwa no0 C.) der jetzt ■ resultirenden Lauge liegt. Letztere Lauge zeigt ein Vol. Gewicht von i,34 = 37° B. und läfst beim Erkalten reines Kalium-Magnesiumsulfat fallen, während sämmtlich gelöstes Natrium- und Magnesiumchlorid in der vom genannten Doppelsalz abtropfenden Lauge sich gelöst befindet.We achieve this by treating kainite with water of ordinary temperature and using the resulting lye, which has a vol. Weight of 1.28 = 32 ° B., to dissolve a second amount of kainite at a temperature below the boiling point ( about no 0 C.) of the now resulting lye. The latter shows a liquor Vol. Weight of i, 34 = 37 ° for example, and on cooling läfst pure potassium-magnesium sulfate fall while sämmtlich dissolved sodium and magnesium chloride is dissolved in the dripping from said double brine.

Beide Operationen:Both operations:

1. das Sättigen von Wasser bei gewöhnlicher Temperatur mit Kainit, und1. the saturation of water at ordinary temperature with kainite, and

2. die Verwendung dieser Lauge zum Lösen von neuen Kainitmengen bei einer Temperatur, die unter dem Siedepunkt der resultirenden Lauge liegt,2. the use of this lye to dissolve new amounts of kainite at a temperature which is below the boiling point of the resulting lye,

lassen sich natürlich dadurch leicht vereinigen, dafs man ein beliebiges, mit einem Dampfzuführungsrohr versehenes Gefäfs von 2 bis 3 m Höhe mit Kainit füllt, Wasser darauf giebt, dieses sich sättigen läfst und darauf Dampf zufuhrt, bis die Lösung die gewünschte Temperatur erlangt hat, welche nicht über 80 ° liegt.can of course be easily combined by connecting any one with a steam supply pipe fill a provided vessel 2 to 3 m high with kainite, pour water on it, let it saturate, and then steam supplies until the solution has reached the desired temperature, which is not above 80 °.

Die Versuche, aus dem Kainit, einem Gemenge von:The attempts from the kainite, a mixture from:

K2SO* + MgSO" + 6JI2O + Mg Cl2 + xNaCl oder: K 2 SO * + MgSO "+ 6JI 2 O + Mg Cl 2 + xNaCl or:

KCl + 2MgSO' + 61I2O + χ NaCl
reines Kalium-Magnesiumsulfat durch Lösen derselben in Wasser herzustellen, sind wohl so alt, wie das Auffinden des Kainits in den Salzlagern von Kalusz und Leopoldshall; so hat Schwarz, Dingler's Polytechnisches Journal, Jahrgang 1876, Band 92, Seite 345, umfassende Versuche darüber veröffentlicht. Das resultirende Kalium-Magnesiumsulfat war jedoch so stark mit Natriumchlorid verunreinigt, dafs eine Verwerthung desselben für technische Zwecke zur Unmöglichkeit wurde.
KCl + 2MgSO '+ 61I 2 O + χ NaCl
To produce pure potassium-magnesium sulphate by dissolving it in water are probably as old as the discovery of kainite in the salt deposits of Kalusz and Leopoldshall; thus Schwarz, Dingler's Polytechnisches Journal, year 1876, volume 92, page 345, published extensive experiments on it. The resulting potassium-magnesium sulfate, however, was so heavily contaminated with sodium chloride that it was impossible to use it for technical purposes.

Diese vollständig negativen Erfolge, die Schwarz beim Lösen des Kainits, sowohl durch Auslaugen desselben mit kaltem Wasser, als auch durch Kochen des Kainits mit Wasser erhielt, erklären sich dadurch, dafs demselben die von uns aufgefundenen Löslichkeitsverhältnisse nicht bekannt waren.These completely negative successes that Black when dissolving the kainite, both by leaching it with cold water, as well as by boiling the kainite with water, are explained by the fact that the kainite is boiled the solubility ratios we found were not known.

Claims (1)

Patent-Anspruch:Patent claim: Die Gewinnung von Kalium-Magnesiumsulfat aus Kainit durch Lösen des Kainits in Wasser bei einer unter 80 ° C. liegenden Temperatur und Erkaltenlassen.The extraction of potassium magnesium sulfate from kainite by dissolving the kainite in water at a temperature below 80 ° C. and let it cool down.
DENDAT10701D Process for separating sodium and magnesium chloride from potassium-magnesium sulfate in kainite Active DE10701C (en)

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DE10701C true DE10701C (en)

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